99 lines
3.0 KiB
C#
99 lines
3.0 KiB
C#
using System;
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using System.IO;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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namespace PLCDataMonitor
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{
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public static class CurveCaptureHelper
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{
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/// <summary>
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/// 捕获CurvePage的曲线Canvas并转为BitmapImage
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/// </summary>
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public static BitmapImage CaptureCurve(Canvas curveCanvas)
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{
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try
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{
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// 创建与Canvas大小一致的渲染目标
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RenderTargetBitmap renderBitmap = new RenderTargetBitmap(
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(int)curveCanvas.ActualWidth,
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(int)curveCanvas.ActualHeight,
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96, 96,
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PixelFormats.Pbgra32);
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// 渲染Canvas到Bitmap
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renderBitmap.Render(curveCanvas);
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// 转为PNG格式图片
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PngBitmapEncoder encoder = new PngBitmapEncoder();
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encoder.Frames.Add(BitmapFrame.Create(renderBitmap));
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// 保存到内存流
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MemoryStream ms = new MemoryStream();
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encoder.Save(ms);
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ms.Position = 0;
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// 转为BitmapImage返回（供Excel插入）
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BitmapImage bitmap = new BitmapImage();
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bitmap.BeginInit();
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bitmap.StreamSource = ms;
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bitmap.CacheOption = BitmapCacheOption.OnLoad;
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bitmap.EndInit();
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bitmap.Freeze(); // 冻结图片，支持跨线程访问
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return bitmap;
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}
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catch (Exception ex)
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{
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MessageBox.Show($"曲线截图失败：{ex.Message}", "错误", MessageBoxButton.OK, MessageBoxImage.Error);
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return null;
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}
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}
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}
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public class ReportData
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{
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// 记录时间
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public string Time { get; set; }
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// 工位1压力（MPa）
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public string Pressure1 { get; set; }
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// 工位2压力（MPa）
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public string Pressure2 { get; set; }
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// 工位1最大摩擦力（N）
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public string Friction1 { get; set; }
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// 工位2最大摩擦力（N）
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public string Friction2 { get; set; }
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public float? t1 { get; set; }
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public float? t2 { get; set; }
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public float? D { get; set; }
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// 【新增】用于存储净运行时间（秒），用于导出和绘图
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public double ElapsedSeconds { get; set; }
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public string Id { get; set; }
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// 构造函数（用于创建数据实例）
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public ReportData(string time, string pressure1, string pressure2, string friction1, string friction2, float? t1, float? t2, float? d)
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{
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Time = time;
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Pressure1 = pressure1;
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Pressure2 = pressure2;
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Friction1 = friction1;
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Friction2 = friction2;
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this.t1 = t1;
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this.t2 = t2;
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D = d;
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}
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// 无参构造函数（供XAML示例数据使用）
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public ReportData() { }
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}
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} |